Theorem simp2rl

Description: Simplification of conjunction. (Contributed by NM, 9-Mar-2012)

	Ref	Expression
Assertion	simp2rl	|- ( ( th /\ ( ch /\ ( ph /\ ps ) ) /\ ta ) -> ph )

Proof

Step	Hyp	Ref	Expression
1		simprl	|- ( ( ch /\ ( ph /\ ps ) ) -> ph )
2	1	3ad2ant2	|- ( ( th /\ ( ch /\ ( ph /\ ps ) ) /\ ta ) -> ph )